Grate for coal-burning stoves



(No Model.) I 3 Sheets-Sheet 1. DE; PARIS.

GRATB vP013.' GOAL BURNING STOVBS. l No. 329,206. Patented Oct. 27,1885.

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' D. E. PARIS..

@RATE FOR COAL BURNING- STOVES. l

No. 329,206. Patent-@d ont. 27, 1885.

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(No Model.)

' D; E. PARIS. GRATB FOR COAL BURNING STOVES.

No. 329,206. Patented .00h27, 1885.

N. PETERS. Pham-Lithograph, Washington. DA C.

UNITED l ASTATESl PATENT @FFI-CE.

DANIEL E. PARIS, OE TROY, NEW YORK.

`GRATE FOR COAL-BURNING ASTOVES.

SPECIFICATION forming part of Letters Patent No. 329,206, dated October27, 1885. Application filed December 31, 1884. Serial No. 151,624. 4(Nomodel.)

To aZZ whom it may concern:

Be it known that I, DANIEL E. PARIs, a citizen of the United States,residing at Troy, Rensselaer county, New York, have invented new anduseful Improvements in Grates for Coal-Burning Stoves, of whichthefollowing is a specication.

It is the object of my invention to provide a grate for wood and coalburning stoves by Io which the ashes may be perfectly sifted, and incoal-stovesthe slag and clinkers thoroughly removed or the entirecontents of the flrepot dumped, as circumstances may require.

The invention consists in a grate composed I 5 of three parallelsections, whereof the central part is capable of rotation andvibration,with a vibrating basket moving over or upon the outer sectionsand reciprocating at right angles to the axis of the central section,the side zo of the latter rising as the basket approaches it, wherebythe cinders and slag are swept from the side grate-sections, and spacegiven upon each side alternately for their discharge into the ash-panbeneath, the central section being also capable of being completelyoverturned to break up large adhering masses or cut the bottom out ofcinder and slag accumulations which fill the re-pot.

My invention also consists in novel and sim- 3o ple means for operatingthe grate, and in the several features of construction and combinationsof parts hereinafter fully described, and shown in the accompanyingdrawings, in which- Figure 1 is a plan view of the fire-pot of a stovecontaining my invention. Fig. 2 is a horizontal section takenin a planejust above the grate. Fig. 3 is a detail perspective of the basketdetached. Fig. 4 is a vertical section 4o taken in a planepassingthrough one end of the stove just outside the gearing of thegrate-sections. Fig. 5 is a detailperspective of apart of one of theouter gratesections removed from its support. Fig. 6 is a perspectiveshowing one method of operating the grate. Fig. 7 is a similar viewshowing a modification of the construction shown in Fig. 7.

In the said drawings, the reference-numeral 1 denotes the body of thestove,which may be 5o of any desired form and construction. Within saidstovebody, and occupying the upper portion of the same, is the fire-pot2, beneath which lies the grate, composed of the three sectionsfS, 4,and i5. Of these the first and the last named are outer or stationarysections, and each is composed of a longitudinal bar, 6, havinggrate-bars 7 projecting from each side, those adjacent to the front andrear -walls of the stove being the shortest.

At one end of each bar 6 is formed a jour- 6o nal, 8, which engages witha seat, 8", in the stove-wall, a lug, 9, being formed upon the extremityof said bearing, which hooks into the aperture 8*. Upon the oppositeside of the-bearing 8 is formed a depending lug, 10, 65 which liesagainst or between one or more bosses, 10, cast upon the inner face ofthe stove 1,whereby the sections 3 and 5 are prevented from rotating.Upon the other end of each bar 6 is formed-a plain cylindrical bear- 7oing, 11, which is laid in a half-seat,11, cast upon the stove oppositeeach aperture 8,

Near each end ofthe bar 6, a flange, 12, is cast upon one of thegrate-bars 7, rising slightly above said bar upon the side most remotefrom the end of the section. The purpose of this construction, which isthe same in both the outer sections, will be explained hereinafter. Theange 12 crosses the longitudinal bar 6, and is extended upon a broad- 8oened at bar, 12b, projecting from the outer edge of the bar 6, the endof the Iiange being curved or carried inward, as shown at 12.

The central section, 4,consists of a longitudin al bar, 13, havinggrate-bars 14 projecting from 8 5 each side, aeonnecting-web, 15, beingformed between the adjacent bars intermediate of the base and the point.Upon one end the bar 13 has a cylindrical bearing, 16, which lies'in theseat 16 formed in the stove-wall, said bar be- 90 ing prolonged and itsend, which projects through the wall of the stove, squared to receive acrank or key. The other end of the bar lies in a yhalf seat, 17, similarto those which support the corresponding ends of the. outer sections.

Adjacent to each bearing is formed a segment-gear, 18, projecting upwardfrom the bar 13, for a purpose presently to be described.

Upon the outer sections, 3 and 5, is sup- Ioo ported a basket, 19,'consisting of an inwardlyinclined oval plate, 20, having 'a horizontalflange, 21, upon its longer sides, or, in other words, upon those sideswhich overlie the outer grate-sections. yUpon itslowcr .edge the rearportion of the plate 2O is provided with short teeth 22, those upon thefront and end portions being preferably of greater length, as shown at22. Near each end of the front and rear portions vof said basket one ofthese teeth is prolonged somewhat, and itspoint rests and moves upon theflanged bar near the end of each stationary grate-section, being guidedin its movement by the flange 12. Upon each end portion of the basket iscast a rack, 23, which meshes with the segmentgears 18 upon the rotarygrate-section. basket 19 lies intermediate of the grate and thefire-pot, although it in reality forms the lower portion of the latter.The repot, which is composed of sections 24of corrugated metallic liningor of re-brick,is,supported ,in

any suitable manner whereby the movement of the basket will not beobstructed.

When the parts thus describedare properly arranged with relationto eachother, the several grate-sections will formlthe floor of there-chamber,:the interval betweenthe bars of` the inner and those oftheouter sections being only sucient to permit the rotation of `theformer. `The teeth upon the basket willover- 'hang the outer sectionsand lie in close proximity to their surfaces, while thegears 18 and theracks with which they mesh will be `protected from clogging by theoverhanging ends ofthe basket 19 and of the nre-pot.

The operation of these parts is as follows: By applying a key or cranktothe projecting squared end of the axial bar 13 in 'the central sectiona greater or less rotary movement may beimparted thereto, from aslightvibratory motion or shaking to a complete overturning or semirevolution thereof. Each movement of the central sectionis accompaniedby a Acorresponding horizontal reciprocation of the basket 19, which islimitedin its movement by the curved extremities 12 of the flanges 12,and which is `caused to move toward the central rotary section as theadjacent edge ofthe latter rises and forms an opening between it and theouter section, through which the cinders and other refuse are pushed bythe advancing teeth of the basket, which sweep over the surface of theouter sections. This reciprocation of the basket not only-serves todisintegrate accumulationswhich become packed in the lower part of there-pot, but eo-operates with the other parts to form a per feetash-sitter, thereby avoiding the necessity of removing the mingled coal,cinders, and ashes and sifting them by a separate apparatus.

If large elinkers are found in the hre-pot, they may be easily andquickly broken up by the rotary section of the grate, and when it isnecessary to dump the contents of the flrepot the central section may beturned completely over, cutting the bottom out of the superincuinbentmass and bringing the `contents of the iire-pot down within the basketand upon the grate.

The

VIn operating the central or rotary section of A.the grate, an ordinarykey or crank may be propose, however, to operate the grate and vibratethe basket by the following means: In

` Figs. 6 and 7 the numeral 26 denotes the body of the stove, which isshown as being cylindrical, but which may be of any form. Thegrate-sections are constructed and arranged in these stoves insubstantially the manner heretofore described. Both ends of thelongitudinal bar 13, which supports the central section, are prolongedto extend through the opposite walls ofthe stove, and upon theseprojecting ends are mounted downwardly curved arms 27, the lower ends ofwhich support the footrail 28. Upon the outer face of this rail, and attheleentral portion thereof, is formed a handle,.29. This foot-railserves as a lever whereby the grate may be operated and the basketvibratcd. In Fig. 7 .the construction and arrangement of parts is thesame, with the exception that the foot-rail 28l is connected directly tothe projecting extremities ofthe central bar .of the rotating section.

It is evident that the construction of the grate may be considerablyvaried without departing from my invention. The form of the basket andthe manner of supporting it may also be modified, and I do not limitmyself to the precise form Vor arrangement shown and described.

This grate operates upon the lower part of the {ire-pot, but far enoughup to cut out the slag, `cinders, and other accumulation, at the sametime making an opening for it to pass .down into `the ash-chamber. Thesame movementalso causes the grate to act after the manner `of a shovelto push the disintegrated matter vcut out by the upper portion downthrough the opening formed alternately upon each side, as shown indotted lines in Fig. 4. The grate is also a perfect ash-sifter. NVithother grates the coals are packed together by vibration, thus preventingthe free circulation of air, or else they cut oft the bottom ofthe fire.Both are objectionable, inasmuch as I want to use one motion when theiire is low and the other when the tire is strong but `clogged up at thebottom. In this grate I .get the benefit of both. The whole bottom oftheire-pot can be vibratcd gently when the re is low,and thus remove thefine ashes, or, when needed, cut off the whole lower part.

Vhat I ,claim is- 1. The ,combination of a tire-pot, amovable grate, abasket above the grate, anda gearconnection between the grate and thebasket, substantially as described.

2. The combination of an oscillating grate, a basket above the same, anda gear connection between the grate and the basket, substantially asdescribed.

3. The combination of a grate composed of' the outer sections and acentral oscillating see- IOO IIO

tion, with a basket above the grate, and a f section and the basket,substantially as described.

' '4. The combination of a fire pot, a grate beneath the same, and amovable basket having depending teeth bearing directly upon the upperside of the grate for loosely supporting the basket thereon, whereby thebasket may be reciprocated in a right line across the grate,substantially as described.

5. The combination of a grate composed of two outer stationary sectionsand a central section provided with a shaft, a gear adjacent to each endof the shaft, and a basket having. racks engaging the gears, andprovided with a toothed or notched lower edge, substantially asdescribed.

6. The combination, with a re pot, of a Y grate composed of two outersections, and a central oscillating section provided with gears, and abasket having a horizontal flange and provided with racks engaging saidgears, substantially as described.

7. The combination of a movable grate, a basket above the grate,segmental gears connected with the movable grate, and racks upon thebasket engaging the segmental gears, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

DANL. R. PARIS.

Witnesses: y

Jns. H. CARPENTER, ARTHUR W. BRADLEY.

